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5 mL of N-HCl, 20 mL of N//2 H(2)SO(4) a...

`5 mL` of `N-HCl`, `20 mL` of `N//2 H_(2)SO_(4)` and `30 mL` of `N//3` `HNO_(3)` are mixed together and the volume is made to `1 L`. The normality of the resulting solution is

A

`N//5`

B

`N//10`

C

`N//20`

D

`N//40`

Text Solution

Verified by Experts

The correct Answer is:
D
`N_(1) V_(1) + N_(2) V_(2) + N_(3) V_(3) = N_(4) V_(4)`
`(V_(4) = V_(1) + V_(2) V_(3) + V_(4))` or
`V_(4) =` Final Volume `= 1 L -= 1000 mL`
`5 xx N + 20 xx (N)/(2) + 30 xx (N)/(3) = N_(A) xx 1000`
`:. N_(4) = (N)/(40)`
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